CI: allow osx builds to fail
CI: allow osx builds to fail

osx builds on travis are failing to find linux tools like getopt and
curl. Temporarily allowing them to fail while this is being worked out.

Fixes: #183

Signed-off-by: Ganesh Maharaj Mahalingam <e84b6eb1374b2034268ad16b797fbec9318eafab@intel.com>

amshinde/shim,amshinde/shim